Achieving high room-temperature thermoelectric performance in cubic AgCuTe

2020 ◽  
Vol 8 (9) ◽  
pp. 4790-4799 ◽  
Author(s):  
Jing Jiang ◽  
Hangtian Zhu ◽  
Yi Niu ◽  
Qing Zhu ◽  
Shaowei Song ◽  
...  
Keyword(s):  
Low Temperature ◽  
Conversion Efficiency ◽  
Temperature Difference ◽  
Room Temperature ◽  
Thermoelectric Performance ◽  
Thermoelectric Conversion

Average ZT of near unity provides a competitive thermoelectric conversion efficiency of ∼12% at low temperature difference of 400 K.

scholarly journals Exceptional thermoelectric performance in Mg3Sb0.6Bi1.4 for low-grade waste heat recovery

2019 ◽  
Vol 12 (3) ◽  
pp. 965-971 ◽  
Author(s):  
Kazuki Imasato ◽  
Stephen Dongmin Kang ◽  
G. Jeffrey Snyder
Keyword(s):  
Conversion Efficiency ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Thermoelectric Performance ◽  
Type Material ◽  
Low Grade ◽  
Thermoelectric Conversion

An n-type material with intrinsically higher thermoelectric conversion efficiency than Bi2Te3 in the low-grade waste-heat range has finally been developed.

scholarly journals Key properties of inorganic thermoelectric materials – tables (version 1)

2022 ◽  
Author(s):  
Robert Freer ◽  
Dursun Ekren ◽  
Tanmoy Ghosh ◽  
Kanishka Biswas ◽  
Pengfei Qiu ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Conversion Efficiency ◽  
Thermoelectric Materials ◽  
Room Temperature ◽  
Temperature Data ◽  
Inorganic Materials ◽  
Peak Performance ◽  
Thermoelectric Conversion ◽  
Wide Range ◽  
Higher Temperature

Abstract This paper presents tables of key thermoelectric properties, which define thermoelectric conversion efficiency, for a wide range of inorganic materials. The 12 families of materials included in these tables are primarily selected on the basis of well established, internationally-recognised performance and their promise for current and future applications: Tellurides, Skutterudites, Half Heuslers, Zintls, Mg-Sb Antimonides, Clathrates, FeGa3–type materials, Actinides and Lanthanides, Oxides, Sulfides, Selenides, Silicides, Borides and Carbides. As thermoelectric properties vary with temperature, data are presented at room temperature to enable ready comparison, and also at a higher temperature appropriate to peak performance. An individual table of data and commentary are provided for each family of materials plus source references for all the data.

Generating Device Based on Theory of Semiconductor Thermoelectric Generation

2013 ◽  
Vol 722 ◽  
pp. 292-295
Author(s):  
Kun Li ◽  
Han He
Keyword(s):  
Low Temperature ◽  
Energy Conversion ◽  
Output Power ◽  
Temperature Difference ◽  
Thermoelectric Generator ◽  
Thermoelectric Generation ◽  
Performance Parameters ◽  
Thermoelectric Conversion ◽  
Made In

The semiconductor thermoelectric generator is a thermoelectric conversion device and is produced according to See back effect of the semiconductor. As a special energy conversion way, its advantages are obvious, with significant recycling effects of low temperature difference energy. A semiconductor thermoelectric generating device is made in accordance with the above theory. The performance parameters including the output power of the generating device are measured through experiments.

High thermoelectric conversion efficiency of MgAgSb-based material with hot-pressed contacts

2015 ◽  
Vol 8 (4) ◽  
pp. 1299-1308 ◽  
Author(s):  
D. Kraemer ◽  
J. Sui ◽  
K. McEnaney ◽  
H. Zhao ◽  
Q. Jie ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Temperature Difference ◽  
High Conversion ◽  
Small Temperature ◽  
High Conversion Efficiency ◽  
Small Temperature Difference ◽  
Thermoelectric Conversion

High conversion efficiency is demonstrated at a relatively small temperature difference for a MgAgSb-based single thermoelectric leg with hot-pressed contacts.

Promising room temperature thermoelectric conversion efficiency of zinc-blende AgI from first principles

2020 ◽  
Vol 33 (1) ◽  
pp. 015501
Author(s):  
Pınar Bulut ◽  
Berna Beceren ◽  
Serbülent Yıldırım ◽  
Cem Sevik ◽  
Tanju Gürel
Keyword(s):  
Conversion Efficiency ◽  
First Principles ◽  
Room Temperature ◽  
Thermoelectric Conversion ◽  
Zinc Blende

Significant enhancement in the thermoelectric performance of Bi2O2S through dimensionality reduction

2019 ◽  
Vol 7 (47) ◽  
pp. 14986-14992 ◽  
Author(s):  
Renqi Zhang ◽  
Zizhen Zhou ◽  
Ning Qi ◽  
Bin Zhao ◽  
Quankun Zhang ◽  
...  
Keyword(s):  
Dimensionality Reduction ◽  
Conversion Efficiency ◽  
Thermoelectric Performance ◽  
Significant Enhancement ◽  
Thermoelectric Conversion

The thermoelectric conversion efficiency η in the Bi2O2S monolayer (bilayer) has been enhanced by 75% (42%) through dimensionality reduction.

scholarly journals Thermoelectric efficiency of anisotropic materials with an application in layered systems

2021 ◽  
Author(s):  
Wencong Shi ◽  
Lilia M Woods
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Working Conditions ◽  
Power Conversion ◽  
Anisotropic Materials ◽  
Thermoelectric Performance ◽  
Thermoelectric Efficiency ◽  
Layered Systems ◽  
Thermoelectric Transport ◽  
Thermoelectric Conversion

Abstract Thermoelectric transport in anisotropic materials is investigated based on most general thermodynamical concepts. Currents and power conversion efficiency are studied in SnSe and SnS in different directions. The design of composites whose thermoelectric performance along different principles directions is the same is proposed. Although such features do not occur naturally, such man-made anisotropic materials can be constructed using bilayers achieving much broadened working conditions of thermoelectric conversion devices. Intricate relationships between the anisotropy and the direction of the electric and heat currents are revealed, which further help us understand how transport occurs in such composites.

Survival of mouse blastocysts after low-temperature preservation under high pressure

2004 ◽  
Vol 52 (4) ◽  
pp. 479-487 ◽  
Author(s):  
Cs. Pribenszky ◽  
M. Molnár ◽  
S. Cseh ◽  
L. Solti
Keyword(s):  
Phase Transition ◽  
Hydrostatic Pressure ◽  
Low Temperature ◽  
High Hydrostatic Pressure ◽  
Room Temperature ◽  
Freezing Point ◽  
Significant Loss ◽  
Embryo Cryopreservation ◽  
Subzero Temperatures ◽  
Survival Capacity

Cryoinjuries are almost inevitable during the freezing of embryos. The present study examines the possibility of using high hydrostatic pressure to reduce substantially the freezing point of the embryo-holding solution, in order to preserve embryos at subzero temperatures, thus avoiding all the disadvantages of freezing. The pressure of 210 MPa lowers the phase transition temperature of water to -21°C. According to the results of this study, embryos can survive in high hydrostatic pressure environment at room temperature; the time embryos spend under pressure without significant loss in their survival could be lengthened by gradual decompression. Pressurisation at 0°C significantly reduced the survival capacity of the embryos; gradual decompression had no beneficial effect on survival at that stage. Based on the findings, the use of the phenomena is not applicable in this form, since pressure and low temperature together proved to be lethal to the embryos in these experiments. The application of hydrostatic pressure in embryo cryopreservation requires more detailed research, although the experience gained in this study can be applied usefully in different circumstances.

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